A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment.
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1. A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment and wherein said caulk composition remains flexible after it is fully cured wherein said composition comprises a pH indicator
1. A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment and wherein said caulk composition remains flexible after it is fully cured wherein said composition comprises a pH indicator which changes color in response to sufficient curing of said composition whereby the degree of cure permits application of a surface treatment to said composition and wherein the pH of said composition having said first color is from about 8 to about 10. 2. The caulk composition of claim 1, wherein said composition is plasticizer-free and once fully cured will elongate under stress and return to approximately its original dimensions once the stress is released. 3. The caulk composition of claim 1, wherein the primary solvent is water. 4. The caulk composition of claim 1, wherein said composition includes a polymer emulsion having a glass transition temperature of about −50° C. 5. The caulk composition of claim 1, wherein said second color is white. 6. The caulk composition of claim 1, wherein the pH of said composition having said second color is below about 8. 7. The caulk composition of claim 1, wherein said skin being suitable for application of a surface treatment has a minimum thickness of about 1 mm-2 mm. 8. A caulk composition comprising an aqueous-based polymer emulsion and a pH indicator wherein prior to use said composition is packaged under an inert environment and has a first color and a pH of from about 8 to about 10 and wherein during use said caulk composition undergoes curing such that it has a second color and a pH of below about 8 and wherein said caulk composition remains flexible after it is fully cured. 9. The caulk composition of claim 8, wherein said composition is plasticizer-free and once fully cured will elongate under stress and return to approximately its original dimensions once the stress is released. 10. The caulk composition of claim 8, wherein the volatile organic compound content of said composition is less than 4% by weight of the post-cure composition. 11. The caulk composition of claim 8, wherein the post-cure composition does not contain ethylene glycol. 12. The caulk composition of claim 8, further comprising at least one filler or pigment selected from a group including calcium carbonate, titanium dioxide, kaolin clays, talc, mica, and silica. 13. The caulk composition of claim 8, wherein the acrylic polymer of said emulsion is the same or substantially the same as that to which Chemical Abstracts registry number 253351-13-2 is assigned. 14. The caulk composition of claim 8, wherein said composition has a shelflife of at least nine months. 15. The caulk composition of claim 8, wherein said composition comprises 0-1 wt % defoamer, 10-50 wt % acrylic polymer, 1-10 wt % solvent, 1-5 wt % dispersant, 1-10 wt % antifreeze, 0.1-5 wt % surfactant, 0.01-5 wt % in-can preservative, 0-5 wt % fungicide, 0-5 wt % additional dispersant, 0-10 wt % thickener, 0-5 wt % adhesion promoter, 0.001-5 wt % pH indicator, 15-80 wt % filler, 0.1-10 wt % pigment and 0-10% pH modifier. 16. The caulk composition of claim 8, further comprising a pH modifier. 17. A method of making a caulk composition, comprising the steps of: blending together a base polymer, a preservative, a thickener and a surfactant to form a base emulsion;adding a pH indicator to said base emulsion;adding at least one filler or pigment selected from a group including calcium carbonate, titanium dioxide, kaolin clays, talc, mica, and silica to said base emulsion; andadding a pH modifier to said base emulsion, such that the resulting final composition has a first color and a pH of about 8 to 10; andpackaging said final composition under an inert blanket environment such that upon use said final composition retains said first color until it is at least partially cured to form a skin and wherein the final composition results in a caulk, which remains flexible after it is fully cured. 18. The method of claim 17, wherein said base polymer is an acrylic polymer emulsion having a glass-transition temperature (Tg) of about −50° C. 19. The method of claim 17, wherein the final composition produced following execution of said steps comprises 0-1 wt % defoamer, 10-50 wt % acrylic polymer, 1-10 wt % solvent, 1-5 wt % dispersant, 1-10 wt % antifreeze, 0.1-5 wt % surfactant, 0.01-5 wt % in-can preservative, 0-5 wt % fungicide, 0-5 wt % additional dispersant, 0-10 wt % thickener, 0-5 wt % adhesion promoter, 0.001-5 wt % pH indicator, 15-80 wt % filler, 0.1-10 wt % pigment and 0-10% pH modifier. 20. The method of claim 19, wherein the final composition produced following execution of said steps comprises from about 30 wt % to 50 wt % acrylic polymer. 21. The caulk composition of claim 15, wherein the composition comprises from about 30 wt % to 50 wt % acrylic polymer.
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이 특허에 인용된 특허 (1)
Kurp, Ronald D., Ready to use spackle/repair product containing dryness indicator.
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